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Spring MVC with AOP

 
Greenhorn
Posts: 23
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Hi All,

I am trying to implement spring AOP on my spring MVC project. I am just working on basic implementation but the AOP part is not running. The code is as below ;

ApplicationContext.xml :

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">



<aop:aspectj-autoproxy />



<bean class="vishal.test.aspect.AspectTest" />

</beans>


welcome-servlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">


<context:component-scan base-package="vishal.test.project" />


<bean id="localeResolver"
class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
<property name="defaultLocale" value="en" />
</bean>

<bean id="localeChangeInterceptor"
class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
<property name="paramName" value="language" />
</bean>

<bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="interceptors">
<ref bean="localeChangeInterceptor" />
</property>
</bean>



<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:message" />
</bean>

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

</beans>


Insertion_class.java :

package vishal.test.project;

import vishal.test.bean.Student;

import java.util.Locale;

import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class Insertion_Class {

@RequestMapping("/entry_point")
public ModelAndView entryPoint(Locale locale)
{
System.out.println("The value of request parameter is "+locale.getLanguage());
Student student = new Student();
return new ModelAndView("insertPage","student",student);
}


@RequestMapping("/add")
public ModelAndView dataEntry(@ModelAttribute("student") Student employeeVO,BindingResult result)
{
Student stu = employeeVO;
boolean error = false;
if (stu.getfName().isEmpty())
{
result.rejectValue("fName", "error.fName");
error = true;

}

if (stu.getlName().isEmpty())
{
result.rejectValue("lName", "error.lName");
error = true;

}
System.out.println("Method 1 called");
if(error) {
return new ModelAndView("insertPage");
}

return new ModelAndView("insertPage2","Student",stu);
}

}


AspectTest.java:

package vishal.test.aspect;

import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;


@Aspect
public class AspectTest {

@Before("execution(*Insertion_Class.*(..)")
public void method()
{
System.out.println("AOP called for First Method");
}

}



web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" id="WebApp_ID" version="2.4">
<servlet>
<servlet-name>welcome</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>welcome</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>



The aop part is not working ?
 
Vishal Bhadur Verma
Greenhorn
Posts: 23
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It started working once I imported the AppplicationContext.xml in side my welcome-servlet.xml..

<import resource='classpath:ApplicationContext.xml' />

Means once we are running Spring MVC in that case the application context xml file has to be imported in servletname-servlet.xml as from web.xml the control goes to the servlename-servlet.xml.. Please correct me if I am wrong
 
Don't get me started about those stupid light bulbs.
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